1 Corinthians 9:16-18

For you see, even though I proclaim the good news, I can’t take the credit for my labors, for I am compelled to fulfill my duty by completing this work. It would be agony to me if I did not constantly preach the gospel! If it were my own idea to preach as a way to make a living, I would expect to be paid. Since it’s not my idea but God’s, who commissioned me, I am entrusted with the stewardship of the gospel whether or not I’m paid. So then, where is my reward? It is found in continually depositing the good news into people’s hearts, without obligation, free of charge, and not insisting on my rights to be financially supported.